1. Abbott P, Hurt C, Tyner W. What’s driving food prices? Farm Foundation Report 2008.
2. AIE (Agence Internationale de l’Énergie). Energy technology perspectives.Scenarios & Strategies to 2050, 2008.
3. AIE. CO2emissions from fuel combustion.Highlights2009.
4. The contribution of biomass in the future global energy supply: a review of 17 studies
5. Collins K.The role of biofuels and other factors in increasing farm and food prices: a review of recent developments with a focus on feed grain markets and market prospects. Report written as supporting material for a review conducted by Kraft Foods Global Inc. of the current situation in farm and food markets, 2008.